DIY_Racing

hey, 1991 crx si.. Car does EXACTLY what yours is doing... ONLY thing i thought was maybe the throttle was sticking. but you said you cleaned yours out.

As for it being an enginemount. AHAHA NO... Tranny? No.. SOmething that happens with the 4 doors?? Thats pretty dumb also...

I cant figure it out for the life of me either. PLEASE let me know if you find the prob.

DIY_Racing

No its not a main relay issue... I wonder about the map.. Could be.. ... ill try that and find out..

some of the suggestions are down right funny here..

Eacv, and map will be my next canidates

DIY_Racing

no, it doesnt sit on the throttle body on the Ef. it is on the firewall.. has a hose that runs to the throttle body..

On the newer hondas i think 92 and up it sits on the throttle body.

spun Vtec

Honda Civic Acceleration Hesitation...

I just recently bought a 1990 Honda Civic LX Sedan, 1.5liter, Automatic, 190K Miles

lmao i think this is the cause right here

CrxSi707

Huh?
What's wrong with EF sedan in automatic? I mean I love my CRX but don't want to drive it everyday. My sedan is a close,practical alternative. It's not used for power demanding conditions.

CrxSi707

Just wanted to revive this topic to see if anybody else might have found a solution.

djtech

Yeah, I STILL haven't figured this darn issue out...I have practically replaced every darn part in the engine with a new one too..Lol...I also get no codes...Hesitation and lack of smooth power from like 1800-2200 or so

jamram109

I bought a 91 civic from my frined for $500 because he couldn't find the problem. I've tried everything as well, and no luck. The only thing I haven't changed is the MAP sensor because it checks out OK, according to the Haynes manual, but I'll go a junk yard sometime this weedend to find a replacement.

Has anyone replaced this sensor yet? I talked to a honda/acura place near my house and they also said that it could be either the sensor or the computer...he pulled out a box with 11 ECU's from cars with the same problem...I don't want to replace the ECU...why is it only common with 4 door cars? I'll let you guys know what's up. I don't visit this forum frequently, so email me if you have any questions about this problem, otherwise I'll post as soon as I find something out.

Jaime

djtech

I have not replaced the Map sensor because mine checks out fine according to two different manuals even. Including the stock service manual from honda. I have changed literally everything in my car and cant figure this crazy thing out. I find it interesting how it is only at lower rpms for me, more noticeable in higher gears of course

jamram109

OK, I finally replace the map sensor and it still didn't do it. It died going down the alley. Can anyone help us? I've replaced/checked everything. I'm running out of options. I can't afford to send it to a mechanic. I have an accord right now, but I would like to get this car running for my little bro. Any help would be appreciated.

Thanks in advance.

Jaime

SeaBass

My B16 does the same god damn thing. So annoying...

blah13

My 90 dx auto had the same thing, check your timing belt to see if it jumped a tooth, mine did and it retareded it so it shifted my powerband way up top, hesitated till i hit 2500 then perfectly fine the rest of the way up. TDC it then check your gear marks.

CRXTSEE

hmm.. my 91 CRX is doin it too. just a very slight hesitation when tapping the gas... feels like a lean condition. I'm not going to try do anything to fix it since none of you have figured it out!

The AntiRice

lol, i have that problem too, 91 si hatch stock motor, 197k miles. The timing belt theroy might make sence, except my car only does it once the cars warmed up. Its like, it drives normally untill its warmed up, or hot and then it bogs under light acceleration untill about 4k rpms and then its fine, unless when it starts to bogg i either take my foot off the gas or give it more gas. Its more annoying than anything but I know my motor is tired, and in need of a complete overhaul (including timing belt) so hopefully when I do that It will work itself out.

crxchris

has any one checked ther o2 sensor and wires or fuel injectors/ fuel system

SeaBass

Hmmm, quick question: When a timing belt skips a tooth, does it make a loud sound? I'm just still trying to figure out what happened to my car since I heard a loud snapping sound come from the front of the car. The engine has run like **** every since. I had the timing belt and water pump replaced since then, but the problem hasn't gone away.

....sometimes I wonder if the mechanic even changed the damn timing belt or just "said he did" and took my money...